Lung function excitation test generally refers to bronchial excitation test, which is about between $100 and $300, and the price of excitation test may vary in different levels of hospitals and different regions. The bronchial provocation test is to inhale the provocation agent of acetylmethacholine and then do the lung function for comparison, to assess whether there is any induced airway spasm, resulting in a decline in lung function. The cost of this test is about between 100 and 300 dollars. However, the price of the excitation test may vary in different levels of hospitals and different regions, and should be based on the price of the local hospital. The bronchial provocation test often needs to be combined with other tests, such as pulmonary ventilation function test, diffusion function test, etc., when the price will be higher. The process of bronchial stimulation test may also trigger an acute attack of bronchial asthma, or even cause severe respiratory failure, the process of doing the test should be prepared to rescue drugs.